[ET-VK][ez] Updates to DynamicDispatchNode

## Changes

* Pass in global work group size to the local work group size determination function in `DynamicDIspatchNode`

## Motivation

Oftentimes it is useful to know what the global work group size is when determining what the local group group size should be.

## Performance Impact

None.

Differential Revision: [D75686047](https://our.internmc.facebook.com/intern/diff/D75686047/)

[ghstack-poisoned]

Author: SS-JIA

backends/vulkan/runtime/graph/ops/DynamicDispatchNode.cpp

@@ -27,7 +27,11 @@ DynamicDispatchNode::DynamicDispatchNode(
           graph,
           pick_shader_fn(&graph, args, resize_args),
           pick_global_wg_fn(&graph, args, resize_args),
-          pick_local_wg_fn(&graph, args, resize_args),
+          pick_local_wg_fn(
+              &graph,
+              pick_global_wg_fn(&graph, args, resize_args),
+              args,
+              resize_args),
           args,
           params,
           push_constants,
@@ -41,8 +45,8 @@ DynamicDispatchNode::DynamicDispatchNode(
 void DynamicDispatchNode::encode(ComputeGraph* graph) {
   shader_ = pick_shader_fn_(graph, args_, resize_args_);
   global_workgroup_size_ = pick_global_wg_fn_(graph, args_, resize_args_);
-  local_workgroup_size_ =
-      utils::WorkgroupSize(pick_local_wg_fn_(graph, args_, resize_args_));
+  local_workgroup_size_ = utils::WorkgroupSize(
+      pick_local_wg_fn_(graph, global_workgroup_size_, args_, resize_args_));
   DispatchNode::encode(graph);
 }
 

backends/vulkan/runtime/graph/ops/DynamicDispatchNode.h

@@ -36,6 +36,7 @@ class DynamicDispatchNode final : public DispatchNode {
       const std::vector<ValueRef>&)>;
   using PickLocalFn = const std::function<utils::uvec3(
       ComputeGraph*,
+      const utils::uvec3& global_workgroup_size,
       const std::vector<ArgGroup>&,
       const std::vector<ValueRef>&)>;
 

backends/vulkan/test/vulkan_compute_api_test.cpp

@@ -3324,6 +3324,7 @@ utils::uvec3 pick_dynamic_dispatch_global_wg_size(
 
 utils::uvec3 pick_dynamic_dispatch_local_wg_size(
     ComputeGraph* graph,
+    const utils::uvec3& global_workgroup_size,
     const std::vector<ArgGroup>& args,
     const std::vector<ValueRef>& additional_args) {
   return {64, 1, 1};